n. Printing One of the blank pieces of type or other means used for separating words or characters.

n. One of the intervals during the telegraphic transmission of a message when the key is open or not in contact.

n. Blank sections in printed material or broadcast time available for use by advertisers.

transitive v. To organize or arrange with spaces between.

transitive v. To separate or keep apart.

transitive v. Slang To stupefy or disorient from or as if from a drug. Often used with out: The antihistamine spaces me out so I can't think clearly.

intransitive v. Slang To be or become stupefied or disoriented. Often used with out: I was supposed to meet her, but I spaced out and forgot.

from Wiktionary, Creative Commons Attribution/Share-Alike License

n. Of time.

n. Unlimited or generalized physical extent.

n. A bounded or specific physical extent.

v. To roam, walk, wander.

v. To set some distance apart.

v. To insert or utlitise spaces in a written text.

v. To eject into outer space, usually without a space suit.

from the GNU version of the Collaborative International Dictionary of English

n. Extension, considered independently of anything which it may contain; that which makes extended objects conceivable and possible.

n. Place, having more or less extension; room.

n. A quantity or portion of extension; distance from one thing to another; an interval between any two or more objects.

n. Quantity of time; an interval between two points of time; duration; time.

n. A short time; a while.

n. Walk; track; path; course.

n.

n. A small piece of metal cast lower than a face type, so as not to receive the ink in printing, -- used to separate words or letters.

n. The distance or interval between words or letters in the lines, or between lines, as in books, on a computer screen, etc.

n. One of the intervals, or open places, between the lines of the staff.

n. that portion of the universe outside the earth or its atmosphere; -- called also outer space.

intransitive v. To walk; to rove; to roam.

transitive v. To arrange or adjust the spaces in or between.

from The Century Dictionary and Cyclopedia

To move at large; expatiate.

To set at intervals; put a space between; specifically, in printing, to arrange the spaces and intervals in or between so that there may be no obvious disproportion: as, to space a paragraph; to space words, lines, or letters.

To divide into spaces.

To measure by paces.

n. The general receptacle of things; room

n. as a character of the universe

n. as a cognition or psychological phenomenon

n. as a mathematical system.

n. The interval between any two or more objects, or between terminal points; distance; extent, as of surface: as, the space of a mile.

n. The interval between two points of time; quantity of time; duration.

n. A short time; a while.

n. Hence, time in which to do something; respite; opportunity; leisure.

n. A path; course (?).

n. In printing, one of the blank types which separate the words in print. The thicknesses most used are one third, one fourth, and one fifth of the square body of the text-type.

n. In musical notation, one of the degrees between the lines of the staff.

n. In ornithology, an unfeathered place on the skin between pterylæ; an apterium, Coues, Key to N. A. Birds, p. 87.

n. The clearance-space in a steam-engine cylinder between the head of the cylinder and the end of the piston when the crank is on its dead center.

n. The difference between the readings of the mercurial thermometer when the temperature is rising and when it is falling, due in part to the change in the curvature of the meniscus and in part to the expansion of the bulb from the change in pressure of the vertical capillary column. The general effect is analogous to that of the dead motion of the micrometer-screw.